/* Layout variables */
:root {
  /* Layout */
  --row-h: 2.2em;
  --label-w: minmax(4em, 8%);
  --cell-w: 1fr;
  --cell-h: clamp(4em, 8vh, 8em);
  --overlay-w: minmax(3rem, 5%);
}

/* Layout & typography */
* { box-sizing: border-box }

body {
  margin: 0;
  font: 500 14px/1.2 ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Inter, Arial;
  background: var(--bg);
  color: var(--ink);
}

.wrap {
  width: 100%;
  margin: 0;
  background: var(--panel);
  height: 100vh;
  display: flex;
  flex-direction: column;
  padding: 1rem;
  white-space: pre-wrap;
}

header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: .75rem;
  flex-shrink: 0;
}

.header-controls {
  display: flex;
  align-items: center;
  gap: .75rem;
}

.today-date { cursor: pointer }
.today-date::first-line { color: var(--today) }
.today-button:hover { opacity: .8 }

/* Header row */
.calendar-header, #calendar-header {
  display: grid;
  grid-template-columns: var(--label-w) repeat(7, var(--cell-w)) var(--overlay-w);
  border-bottom: .1em solid var(--muted);
  align-items: last baseline;
  flex-shrink: 0;
  width: 100%;
}
.calendar-header .dow-label { display:grid; place-items:center; height: var(--cell-h); color: var(--muted) }
.overlay-header-spacer { grid-column: -2 / -1 }

/* Main container */
.calendar-container, #calendar-container {
  flex: 1;
  overflow: hidden;
  position: relative;
  width: 100%;
  display: flex;
}

/* Viewports (support id or class) */
.calendar-viewport, #calendar-viewport {
  height: 100%;
  overflow-y: auto;
  overflow-x: hidden;
  flex: 1;
  width: 100%;
  scrollbar-width: none;
}
.calendar-viewport::-webkit-scrollbar,
#calendar-viewport::-webkit-scrollbar { display: none }

.jogwheel-viewport, #jogwheel-viewport {
  position: absolute;
  top: 0; right: 0; bottom: 0;
  width: var(--overlay-w);
  overflow-y: auto;
  overflow-x: hidden;
  scrollbar-width: none;
  z-index: 20;
  cursor: ns-resize;
}
.jogwheel-viewport::-webkit-scrollbar,
#jogwheel-viewport::-webkit-scrollbar { display: none }

.jogwheel-content, #jogwheel-content { position: relative; width: 100% }
.calendar-content, #calendar-content { position: relative }

/* Week row: label + 7-day grid + jogwheel column */
.week-row {
  display: grid;
  grid-template-columns: var(--label-w) repeat(7, var(--cell-w)) var(--overlay-w);
  position: relative;
  overflow: visible;
  height: var(--cell-h);
  scroll-snap-align: start;
  width: 100%;
}

/* Label cells */
.dow-label, .week-label {
  display: grid;
  place-items: center;
  width: 100%;
  height: var(--cell-h);
  color: var(--muted);
  cursor: ns-resize;
  font-size: 1.2em;
}

/* 7-day grid inside each week row */
.week-row > .days-grid {
  grid-column: 2 / span 7;
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  grid-auto-rows: 1fr;
  position: relative;
  height: 100%;
  width: 100%;
}

/* Overlay sitting above the day cells, same 7-col grid */
.week-row > .days-grid > .week-overlay {
  margin-top: 1.2em;
  position: absolute;
  inset: 0;
  pointer-events: none;
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  grid-auto-rows: 1fr;
  z-index: 15;
}

.month-name-label {
  grid-column: -2 / -1;
  font-size: 2em;
  font-weight: 700;
  color: var(--muted);
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  z-index: 15;
  overflow: visible;
  position: absolute;
  top: 0; right: 0;
  width: 100%;
}
.month-name-label > span {
  display: inline-block;
  white-space: nowrap;
  writing-mode: vertical-rl;
  text-orientation: mixed;
  transform: rotate(180deg);
  transform-origin: center;
}